✔ 最佳答案
I have a fairly old Android smartphone. It's at least 9 years old (Motoblur), no longer getting any updates, still works for calls, text and older games/apps. I use this as my bumming around, grass cutting/watering phone. If it dies or gets destroyed, no big deal, since I bought it used for $3 bucks at a yard sale. Is it still "safe" to use? Yup, as long as I stay off public unknown Wi-Fi or do anything that has not been patched since its last update years ago, that was a known exploit for that version of Android. But calls, text, web browsing, not an issue.